Developer Tools
The small utilities that come up constantly during debugging — encoding, timestamps, hashes, colours and formatters — without a round trip to a server.
Encoding, hashing, time, colour, regex and formatting utilities that come up in everyday work.
Base64 EncodeEncode text or files to Base64, with URL-safe and line-wrap options.TextBase64Base64 DecodeDecode Base64 back to text, with automatic URL-safe and padding handling.Base64TextURL EncodePercent-encode text for safe use in URLs, with component and full-URL modes.TextEncoded textURL DecodeDecode percent-encoded URLs and parameters back to readable text.Encoded textTextHTML EncodeEscape HTML special characters so markup and code display as text.TextHTML entitiesHTML DecodeConvert HTML entities back into the characters they represent.HTML entitiesTextJWT DecoderDecode JWT header and payload claims. Signature is not verified.JWTJSONUUID GeneratorGenerate cryptographically random UUID v4 identifiers in bulk.OptionsUUIDTimestamp ConverterConvert between epoch timestamps, ISO 8601 and human-readable dates.TimestampDateUnix Time ConverterWork with Unix epoch time, including arithmetic and timezone comparison.Unix timeDateRegex TesterTest regular expressions live with match highlighting and capture groups.Pattern + textMatchesText DiffCompare two blocks of text line by line and see additions and removals.TextDiffHash GeneratorCompute SHA-1, SHA-256, SHA-384, SHA-512 and CRC32 checksums.TextHashColor ConverterConvert colours between HEX, RGB, HSL and HSV with a contrast check.ColorColorSQL FormatterFormat SQL queries with keyword casing and dialect-aware indentation.SQLSQLHTML FormatterIndent and clean up HTML markup with configurable wrapping.HTMLHTMLCSS FormatterBeautify CSS with consistent indentation, or compact it back down.CSSCSSJavaScript FormatterBeautify JavaScript and JSON-like code with configurable style options.JavaScriptJavaScriptMarkdown PreviewWrite Markdown and see the rendered HTML result side by side.MarkdownHTMLLorem Ipsum GeneratorGenerate placeholder paragraphs, sentences, words or list items.OptionsText